Display rack



FIG. 1 is a perspective view of the display rack showing my new design, the broken lines depicted therein being for illustrative purposes only and form no part of my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being identical thereto;

FIG. 4 is a right side elevational view thereof, the left side being identical thereto; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a display rack, as shown and described. 